1 //
2 //
3 // Copyright 2015 gRPC authors.
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 // http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 //
17 //
18
19 #include <grpc/support/port_platform.h>
20
21 #include "src/core/lib/iomgr/port.h"
22
23 #ifdef GRPC_POSIX_SOCKET_IOMGR
24
25 #include "src/core/lib/iomgr/ev_posix.h"
26 #include "src/core/lib/iomgr/iomgr_internal.h"
27 #include "src/core/lib/iomgr/resolve_address.h"
28 #include "src/core/lib/iomgr/resolve_address_posix.h"
29 #include "src/core/lib/iomgr/tcp_client.h"
30 #include "src/core/lib/iomgr/tcp_posix.h"
31 #include "src/core/lib/iomgr/tcp_server.h"
32 #include "src/core/lib/iomgr/timer.h"
33
34 extern grpc_tcp_server_vtable grpc_posix_tcp_server_vtable;
35 extern grpc_tcp_client_vtable grpc_posix_tcp_client_vtable;
36 extern grpc_timer_vtable grpc_generic_timer_vtable;
37 extern grpc_pollset_vtable grpc_posix_pollset_vtable;
38 extern grpc_pollset_set_vtable grpc_posix_pollset_set_vtable;
39
iomgr_platform_init(void)40 static void iomgr_platform_init(void) {
41 grpc_core::ResetDNSResolver(std::make_unique<grpc_core::NativeDNSResolver>());
42 grpc_wakeup_fd_global_init();
43 grpc_event_engine_init();
44 grpc_tcp_posix_init();
45 }
46
iomgr_platform_flush(void)47 static void iomgr_platform_flush(void) {}
48
iomgr_platform_shutdown(void)49 static void iomgr_platform_shutdown(void) {
50 grpc_tcp_posix_shutdown();
51 grpc_event_engine_shutdown();
52 grpc_wakeup_fd_global_destroy();
53 grpc_core::ResetDNSResolver(nullptr); // delete the resolver
54 }
55
iomgr_platform_shutdown_background_closure(void)56 static void iomgr_platform_shutdown_background_closure(void) {
57 grpc_shutdown_background_closure();
58 }
59
iomgr_platform_is_any_background_poller_thread(void)60 static bool iomgr_platform_is_any_background_poller_thread(void) {
61 return grpc_is_any_background_poller_thread();
62 }
63
iomgr_platform_add_closure_to_background_poller(grpc_closure * closure,grpc_error_handle error)64 static bool iomgr_platform_add_closure_to_background_poller(
65 grpc_closure* closure, grpc_error_handle error) {
66 return grpc_add_closure_to_background_poller(closure, error);
67 }
68
69 static grpc_iomgr_platform_vtable vtable = {
70 iomgr_platform_init,
71 iomgr_platform_flush,
72 iomgr_platform_shutdown,
73 iomgr_platform_shutdown_background_closure,
74 iomgr_platform_is_any_background_poller_thread,
75 iomgr_platform_add_closure_to_background_poller};
76
grpc_set_default_iomgr_platform()77 void grpc_set_default_iomgr_platform() {
78 grpc_set_tcp_client_impl(&grpc_posix_tcp_client_vtable);
79 grpc_set_tcp_server_impl(&grpc_posix_tcp_server_vtable);
80 grpc_set_timer_impl(&grpc_generic_timer_vtable);
81 grpc_set_pollset_vtable(&grpc_posix_pollset_vtable);
82 grpc_set_pollset_set_vtable(&grpc_posix_pollset_set_vtable);
83 grpc_tcp_client_global_init();
84 grpc_set_iomgr_platform_vtable(&vtable);
85 }
86
grpc_iomgr_run_in_background()87 bool grpc_iomgr_run_in_background() {
88 return grpc_core::IsEventEngineCallbackCqEnabled() ||
89 grpc_event_engine_run_in_background();
90 }
91
92 #endif // GRPC_POSIX_SOCKET_IOMGR
93